For one thing, the threat model assumes customers can build their own tools. Our end users can't. Their current "system" is Excel. The big enterprises that employ them have thousands of devs, but two of them explicitly cloned our product and tried to poach their own users onto it. One gave up. The other's users tell us it's crap. We've lost zero paying subscribers to free internal alternatives.
I believe that agents are a multiplier on existing velocity, not an equalizer. We use agents heavily and ship faster than ever. We get a lot of feedback from users as to what the internal tech teams are shipping and based on this there's little evidence of any increase in velocity from them.
The bottleneck is still knowing what to build, not building. A lot of the value in our product is in decisions users don't even know we made for them. Domain expertise + tight feedback loop with users can't be replicated by an internal developer in an afternoon.
That's not the threat model. The threat model is that they won't have to - at some point which may not be right now. End users want to get their work done, not learn UIs and new products. If they can get their analysis/reports based on excels which are already on SharePoint (or wherever), they'd want just that. You can already see this happening.
Think about all the cycles this will save. The CEO codes his own dashboards. The OP has a point.
"It" being "that it's harder than it looks"?
Honestly, I'm not sure what to expect. There are clearly things he can't do (e.g. to make it work in prod, it needs to be in our environment, etc. etc.) but I wouldn't be at all surprised if he makes great headway. When he first asked me about it, I started typing out all the reasons it was a bad idea - and then I paused and thought, you know, I'm not here to put barriers in his path.